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Add 12/10 and 28/72

1st number: 1 2/10, 2nd number: 28/72

12/10 + 28/72 is 143/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 10 × 36 = 360,
    12/10 = 12 × 36/10 × 36 = 432/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    28/72 = 28 × 5/72 × 5 = 140/360
  4. Add the two like fractions:
    432/360 + 140/360 = 432 + 140/360 = 572/360
  5. 572/360 simplified gives 143/90
  6. So, 12/10 + 28/72 = 143/90
    In mixed form: 153/90

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